Time-delay estimation (TDE) of monochromatic signals,observed by spatially separated sensors, is widely used for sourcelocalization in radar/sonar applications. We use lower bounds tostudy the accuracy of TDE as a function of signal to noise ratio(SNR), frequency, and sensor separation. We show that the Cramer-Rao bound, which is frequently used as a standard ofreference, yields optimistic predictions in many cases.
Bounds on Time-Delay Estimation for Monochromatic Signals
IEEE Transactions on Aerospace and Electronic Systems ; AES-23 , 6 ; 798-808
1987-11-01
1688300 byte
Article (Journal)
Electronic Resource
English
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